#include <stdio.h>

int swap_add(int *xp, int *yp){
	int x = *xp;
	int y = *yp;
	
	*xp = y;
	*yp = x;
	return x + y;
}

int caller(){
	int arg1 = 534;
	int arg2 = 1057;
	int sum = swap_add(&arg1, &arg2);
	
	int diff = arg1 - arg2;

	return sum * diff;
}
